Catsup-bottle cap



C. HAMMER.

CATSUP BOTTLE CAP.

APPLICATION FILED APR. 23, 19l9- RENEWED DEC.- 7,1920.

'1,376,761. Patented'May 3,1921.

42 y] jw i J i In 06' for: 2 Uarl UNITED STATES PATENT OFFICE.

CHARLES HAMMER, OF QUEENS, NEW YORK, ASSIGNOR T0 AMERICAN METAL CAP COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

CATSUP-BOTTLE CAP.

Specification of Letters Patent.

Patented May 3, 1921.

Application filed April 23, 1919, Serial No. 292,192. Renewed December 7, 1920. Serial No. 429,034.

structure of this character, in which the cap is formed from a strip of sheet metal bent into the form of a cylinder with lapping end portions, and one end of the cylinder is closed by a disk; and in which the lapping end portions have their edges concealed but which do not themselves interlock, the lapping end portions being secured b one or more lugs back from the end of t e strip.

A further object of the invention is to provide such a structure in which lugs are formed by slits in the metal, and in which the open portions will be located on the interior and do not serve to mar the appearance of the cap, nor provide any rough edges on the outside.

In the accompanying drawing illustrating one embodiment of my invention, Figure 1 shows the blank for the body member.

Fig. 2 shows the blank with the end portions bent over.

Fig. 3 is an edge view of the blank as shown in Fig. 2.

Fig. 4 shows the blank bent around to engage the edges.

Fig. 5 shows the finished cap.

Fig. 6 shows the same with the screw thread applied.

' Fig. 7 is a vertical section enlarged.

Fig. 8 is a partial cross section enlarged through one of the lugs; and

Fig. 9 is a similar view in the finished condition.

The blank 10 for the body member is shown in the form of a fiat strip of thin sheet metal, that has the end portions bent over as at 11 and 12. The bent portion 12 forms a kind of hook, while the bent portion 11 is doubled back fiat on the face of the blank. These are bent toward opposite faces of the blank, the bend 11 being toward the outer face, while the hook portion 12 lies on the inner face of the blank, as indicated in Fig. 4.

i For the purpose of securing the end portions of the blank when bent to form a cylinder, I provide one or more lugs on the inner end portion at the lapping place. These lugs 13 are each formed by making three slits in the metal, and pushing out the metal to form a kind of hook or tongue, as shown in Figs. 3 and 8. When the body is bent to the form of a cylinder, these lugs 13 are caused to hook into the bent end portion 12, as shown in Figs. 1 and 8, and then the end portions pressed tightly together, as 1nd1cated in Figs. 7 and 9. It will be seen that the hooks of one end portion engage the bent end of theother end portion to prevent separation of the end portions, yet the doubled ends themselves are not brought together and do not interlock but are separated some distance. This will overcome the thickness of metal caused in the usual form of interlocking bent ends in structures of this character, and common in can seams. It will be noticed from Figs. 7 and 9 that there is practically nowhere four thicknesses of metal, and the usual bulge is obviated. It will be further understood that the opening of edges exposed by forcing out the tongue at the slit portion, will be located on the inner face of the cap and the outside of the cap will present a contin uous and practically unbroken surface, the only edge being where the outer end portion is doubled over inwardly. One end of the cylinder thus formed is closed by a disk 14;. This may have the usual form of interlock at its margins with one edge of the cylinder as shown in Figs. 6 and 7, being of the well known character, such as set forth in U. S. Patent to Kind, No. 321,822, of 1885.

At the open end of the closure the margin may be bent back outwardly to form a kind of bead or wire edge, as shown at 16. By this means it will be seen that there are no raw edges of the metal exposed at any place, except at the two portions on the inside face where the lugs are formed.

What I claim is 1. A closure cap comprising a body portion formed of a sheet metal strip bent into the proximate form of a cylinder with the end portions lapping and the outer edge bent back on itself inwardly, the inner end portion being provided with slits with the inclosed portion bent outwardly to form a lug that hooks into the said inner bent end portion to prevent separation ofthe end portions, whereby to form a lock entirely concealed on the outer face of the closure, and a disk closing one end of the body.

2. A closure cap comprising a body portion formed of a sheet metal strip bent into the proximate form of a cylinder with the end portions lapping and the inner edge bent back on itself outwardly and the outer edge bent back on itself inwardly without interlocking, the inner end portion being provided with slits with the inclosed portion bent outwardly to form a lug that hooks into the said inner bent end portion to prevent separation of the end portions, whereby to form a lock entirely concealed on the outer face of the closure and a disk closing one end of the body.

Signed at New York city, N. Y. on April 21st, 1919.

CHARLES HAMMER. 

